I overheard a friend say that the fresh air system would be mandatory. Is it true?/You don't say. Why is it mandatory? We all don't know how to be trustworthy. ...

It's really true. For everyone's health, this is mandatory, because the fresh air system can really help solve the problem of air purification. Many foreign residents and businesses have installed fresh air systems, and the response results page is quite good. And the installation process is very simple, easy to use, low power consumption, large air volume, ultra-quiet, small and exquisite appearance.

As an internationally renowned brand, Spain SOPAS S&; Nanjing Shengdao Environmental Technology Co., Ltd., a high-end energy-saving and environmental protection product produced by P International Group, is the general representative of Shengdao Central Intelligent Fresh Air System in China. It has many first-class engineers and technicians and more than 20 business elites, as well as a skilled and highly responsible construction team and a perfect after-sales service system. Our products have passed ISO900 1:2000, 1400 1 quality management system certification, and have been tested and certified by dozens of authoritative certification institutions at home and abroad such as international CE certification and national CCC certification. The advantages of high quality, energy saving, safety, reliability and convenient installation make Shengdao products, especially Shengdao fresh air system, unique in the central fresh air field and in a leading position in the same industry in the world. It has been widely used in residential and commercial buildings all over the country. ...

Our purpose is not to make money, but to contribute to society ... I hope everyone can breathe healthily. ...